Method and apparatus for detecting discontinuities in a fluid stream
US4607520A · kind A · utility
107Cited by
25References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 9, 1984 |
| Grant date | Aug 26, 1986 |
| Priority date | — |
| Expiry date | Jan 9, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S73/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method and apparatus for detecting discontinuities, such as bubbled, in a fluid stream, in which a tube is placed between a transducer transmitting successive bursts of ultrasonic energy and for receiving the bursts. The receiving transducer is connected to a signal processing circuit which keeps an indicator in a first state when signals are received corresponding to the presence of a fluid and in a second state when the bursts of energy are modified by the discontinuity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.